Little Mix pick up where they left off with "F.U."

In their lead Glory Days single, "Shout Out To My Ex," the ladies of Little Mix had a bone to pick with their good-for-nothing ex-boyfriends.

In their new promotional single "F.U.," they're still bitter about it.

You're dirty, disgusting, but I can't get enough of your loving," they sing over oddly peaceful production. "Boy I hate you, really hate you / My momma said I shouldn't date you / You cheatin', you lying' / I know that you're hiding two cellphones / But boy, right before I say that it's the end... you sweet talk me again."